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Properly redirect alias for MVC (PR ipa/84722).

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2018-03-16  Martin Liska  <mliska@suse.cz>

	PR ipa/84722
	* multiple_target.c (create_dispatcher_calls): Redirect also
	an alias.
2018-03-16  Martin Liska  <mliska@suse.cz>

	PR ipa/84722
	* gcc.target/i386/mvc10.c: New test.

From-SVN: r258595
This commit is contained in:
Martin Liska 2018-03-16 15:53:24 +01:00 committed by Martin Liska
parent a81495699e
commit a9a9804984
4 changed files with 34 additions and 0 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2018-03-16 Martin Liska <mliska@suse.cz>
PR ipa/84722
* multiple_target.c (create_dispatcher_calls): Redirect also
an alias.
2018-03-16 Jakub Jelinek <jakub@redhat.com>
PR c++/79937

7
gcc/multiple_target.c
View File

@ -145,6 +145,13 @@ create_dispatcher_calls (struct cgraph_node *node)
walk_gimple_stmt (&it, NULL, replace_function_decl, &wi);
}
}
else if (ref->use == IPA_REF_ALIAS)
{
symtab_node *source = ref->referring;
ref->remove_reference ();
source->create_reference (inode, IPA_REF_ALIAS);
source->add_to_same_comdat_group (inode);
}
else
gcc_unreachable ();
}

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2018-03-16 Martin Liska <mliska@suse.cz>
PR ipa/84722
* gcc.target/i386/mvc10.c: New test.
2018-03-16 Jakub Jelinek <jakub@redhat.com>
PR c++/79937

16
gcc/testsuite/gcc.target/i386/mvc10.c Normal file
View File

@ -0,0 +1,16 @@
/* PR ipa/84722. */
/* { dg-do run } */
/* { dg-require-ifunc "" } */
__attribute__ ((target_clones ("avx", "arch=core-avx2", "default"))) int
foo (int i)
{
return i - 1;
}
int weaks (int i) __attribute__ ((weak, alias ("foo")));
int
main (int argc, char **argv)
{
return weaks (argc);
}